Thongs tend to be worn on the mid part of the body in NZ. We wear jandals on our feet, as thongs don't offer any underfoot protection. Jandals worn in the mid part of the body would chaff somewhat....

The xray scanners in AKL and CHCH are fine for film. You'll get to put your bags through the quarantine scanners too - no choice there. Do remember to declare everything - some friends from Sydney came over the other week, with a very expensive mandarine in their bags - a $400 instant fine one!